427990835 has 4 divisors (see below), whose sum is σ = 513589008. Its totient is φ = 342392664.

The previous prime is 427990813. The next prime is 427990907. The reversal of 427990835 is 538099724.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427990835 - 2¹⁴ = 427974451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427990835.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42799079 + ... + 42799088.

It is an arithmetic number, because the mean of its divisors is an integer number (128397252).

Almost surely, 2^427990835 is an apocalyptic number.

427990835 is a deficient number, since it is larger than the sum of its proper divisors (85598173).

427990835 is an equidigital number, since it uses as much as digits as its factorization.

427990835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85598172.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 427990835 is about 20687.9393608933. The cubic root of 427990835 is about 753.6068251296.

The spelling of 427990835 in words is "four hundred twenty-seven million, nine hundred ninety thousand, eight hundred thirty-five".